Question

Definition of trigonometry functions of any angle

Answer 1

Trigonometric Functions of Any Angle.
Lesson Three: 
Trigonometric Functions of Any Angle.
Key Concepts.
Let theta be an angle in standard position with (x,y) a point on the terminal side of theta and.
The signs of the six trigonometric functions can be determined by examining thedefinitions of the functions given 

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